Gearing.



J. H. MALLEY.

GEARING. 7 APPLICATION FILED APR.29, 1909.

977,207. Patented Nov. 29, 1,910.

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J. H. MALLEY.

GEARIN G.

APrL1oAT10N1ILEDAPB-z9.1909.

Patented Nov. 29, 1910.

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UNlTED STATES PATENT FFTCE.

JOHN H. MALLEY, 0F HARRISVILLE, RHODE ISLAND.

GEARING.

fo all ywhom it may concern.'

Be it known that I, JOHN H. MALLEY, a citizen of the United States,residing at Harrisville, in the county of Providence and State of RhodeIsland, have invented a new and useful Improvement in Gearing, of whichthe following is a specification.

This invention has reference to an improvement in pattern looms and moreparticularly to the head motion of looms carrying the pattern chain.

The object of the invention is to more positively operate the changemechanism of the change gears of the chain driving mechanism.

A further object of the invention is to release the change gears fromthe driving shaft.

A still further object is to so construct the change gear as to increasethe utility of the saine.

My invention consists in the peculiar and novel construction of thechange gears and locking device, whereby the gears are driven in onedirection or reversed, or entirely released from the driving shaft, aswill be set forth hereinafter and pointed out in the claims.

Referring to the drawings, like numerals of reference designate likeparts throughout the several views.

Figure 1 is a view, partly in section, of the change gears embodying myimprovements. Fig. 2 is a view, partly in section, particularly showingthe connecting key and latch. Fig. 3 is a front view of the changegears, showing the head of the latch and the neck of the key which is insection. Fig. 4 is a back view of the change gears. Fig. 5 is adiametric view of the change gears and a part of the cylinder gear toindicate direction of revolution. Fig. 6 is a diametric view of t-hechange gears and a part of the cylinder gear to indicate direction ofrevolution. Fig. 7 is a view of one of the rear change gears, and Fig. 8is a side view of the flanged collar.

Referring to the drawings 10 indicates the inner one of the twoconnected transmission gears which normally run idle, the outer onebeing designated as 11. These two gears are either formed of one pieceof metal or are'secured together to form a compound gear and are mountedon the stud 12 which extends outward from the frame. The gear 10 is ofsmaller diameter than the gear 11.

Specification of Letters Patent.

Application led April 29, 1909.

Patented Nov. 29, 1910.

semi No. 492,814.

The cylinder gear 13 connects with and drives the gear 10 in theordinary running of the loom. The shaft 14, usually the lower cylindershaft, is driven always in one direction by the head motion in the usualand ordinary manner, and is the driving shaft of the gear system hereindisclosed.

The change gear mechanism is supported on the shaft 14 and consists ofthe outer gear 15, the anged collar 16, the inner gear 17 formed in twoparts c and b, the key 18 and the latch 19, all the parts being held inposition on the shaft 14 by the collar 20.

The gear 15 is formed with the circular depression 21 into which thepart 16 of the collar 16 extends and with the hole 22 in which the latchis carried. The collar 16 is formed with the keyway 23 and theoutwardly-extending circular flange 24 in which is formed the hole 25(one of the edges is cut away, as at 29, so that as the collar revolvesthe key will be held in position) as shown in Fig. 8 of the drawings.

The compound gear 17 is formed in two parts c and Z), the part c beingformed with the depression 26 for receiving the part 162 of the collar16 and has the keyway 27, as shown in Fig. 7 of the drawings, the part bbeing formed with four keyways 28 28, as shown in Fig. 4 of thedrawings.

It will be readily seen that by this construction, when one of thekeyways becomes worn the part b can be removed from the shaft 14 andreplaced in position to bring a new keyway in position for the key toenter, thereby practically giving to the gear 17 four times the life.

Only the part o is made with four key` ways, since if the gear wereintegral and provided with four key ways, it would be impractical toproperly time the gears in connection with the operation of the chaindriving mechanism. By having but one key way in the part a, it isassured that the timing will be properly eected and at the same time therelative position of the part Z) may be changed as desired, in order tobring anew key Way into use.

In the normal operation of the head motion of the loom, referring toFig. 1 wherein the key 18 connects the shaft 14 and the gear 17, thecylinder gear 13 is driven by the gear 17 (in the direction of thearrow, Fig. 5) and the gears 10 and 11 run idle, the latter driving thegear 15 which runs idle in a reverse direction to the gear 17.

Then it is desired to reverse the rotation of the gear 13, the key 18 ispulled outwardly to the position shown in dotted lines in Fig. 1 and infull lines in Fig. 2. In this position, the heel or locking portion ofthe key engages partially in the recess 21 and partially in the key-way23, thus coupling the shaft la and the collar 16. The latter is in turncoupled to the gear 15 by the latch 19 which occupies the full lineposition ofV Fig. 1. The gear 15 thus turns in the same direction as theshaft 14, driving the gears 11 and 10, and the latter driving thecylinder gear 13 in a reverse direct-ion (F ig. 6) from that in whichitwas driven in the operation above described. The gear 13 in turn drivesthe gear 17, which now runs idle in a direction reverse to the shaft 14and the gear 15.

IVhen it is desired to completely release the change gear mechanismfromV the head motion of the loom for the purpose of changing thecha-ins in any manner, as under this condition the loom would bestopped, the key is first drawn out thereby uncoupling the shaft 11 andgear 17 and then the latch 19 is drawn out from the locked position withthe collar-1G, as is shown in Fig. 2 of the drawings, thereby uncouplingthe collar 1G and the gear 15. In this position the change gearmechanism is released from the shaft 14 and connecting parts of the headmotion, the gear wheels being stationary, the collar 16 turning idlywith the shaft 11, and the heel of the key 18 running freely in therecess 21 of the gear 15.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a device of the nature described, thecombination with a driven shaft, a gear rotatably supported on theshaft, a flanged collar surrounding the shaft, a compound gearsurrounding the shaft, means for locking the compound gear to the shaftand operable also to disengage the compound gear and to lock the collarto the shaft, and means for locking the collar to the first named gear.

2. In a change gear mechanism for looms, the combination with a drivenshaft, of a gear rotatably supported on the shaft, a collar surroundingthe shaft, means for locking the collar to the gear, means for lockingthe collar to the shaft, and a compound gear surrounding the shaft, thelast named means being operable to disengage the collar and to lock thecompound gear to the shaft.

8. In a device of the nature described, the combination with a drivenshaft, a gear rotatably supported on the shaft, a flanged collarsurrounding the driven shaft, a compound gear surrounding the drivenshaft, and a stepped gear connecting the gear with the compound gear, ofmeans for connecting or disconnecting the first named gear to the flangeof the collar, and means for connecting or disconnecting the collar andthe compound gear to the shaft.

4. In a device of the nature described, the combination with a drivenshaft, a gear assembled thereon, a flanged collar assembled thereon, acompound gear assembled thereon, and a stepped gear connecting the firstnamed gear with the compound gear, of a latch to connect the collar andthe first named gear, and means for connecting or disconnecting thecompound gear and the collar to the driven shaft.

5. In a device of the nature described, a driven shaft, a pair of gears,and an intermediate element, means for coupling the intermediate elementand one of the gears and means for putting the intermediate element intodriven relation with the shaft when said element is coupled to said gearand for putting the other gear in driven relation with the shaft whensaid element is uncoupled from said gear.

G. In a device of the character described, a driven shaft, a pair ofIgears and an intermediate element assembled thereon, a latch to couplethe intermediate element to one of the gears and a key to couple inalternation the intermediate element and the other gear to the shaft.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN H. MALLEY.

Vitnesses ADA E. HAGERTY, J. A. MILLER.`

